John nepomuc moerath



(No Model.)

J. N. MOE RATH.

FURNACE.

Patented Nov. 23, 1886.

. UNI ED STATES PATENT OFFICE.

JOHN NnPoM o MOERATH, OF KILBURN PARK ROAD, COUNTY or MIDDLE- SEX,ENGLAND.

FURNACE.

SPECIFICATION forming part of Letters Patent No. 353,230, dated November23, 1886.

Application filed September 10, 1886. Serial No. 213,190. (No model.)Patented in England November 10, 1883, No. 5,320, and November 21, 1884,No.15,356; in Germany January .26, 1884, No. 31,167; in France April 18,1884, No. 161,596, and in Belgium April To aZZ whom it may concern:

Be it known that I, J OHN NEPoMUo MOE-v BATH, a subject of the Emperorof Austria, residing at Kilburn Park Road, in the county of Middlesex,England, civil engineer, have invented certain new and usefulImprovements inApparatus or Appliances in Connection with Fire-Places,Stoves, and Furnaces, (for which patents have been granted me in thefollowing countries, viz: Great Britain, dated November 10, 1883, No.5,320; Germany, dated January 26, 1884., No. 31,157; France, dated April18,

1884, No. 161,596; Belgium, dated April 18, 1884, No. 64, 868; GreatBritain, dated November 21, 1884, N 0. 15,356,) of which the followingis a specification.

The object of my invention is to economize fuel by obtaining a moreperfect combustion and consequent consumption of smoke, as well aspreventing the adhesion of clinkers to the fire-bars. For this purposeIemploy a system comprising the automatic suction of air, co mbined withaqueousvapor from a cistern in the ash-pit, which together are mixed inproper proportions with the developed carbonic-oxide gases. more perfectcombustion of fuel and the smoke evolved therefrom and greater heat,while at the same time effecting an immense saving of fuel. To this endI employ a water pan or cistern placed in the ash-pit under thefire-grate, the vapor from which, in combination with the atmosphericair, is driven through hollowfire bars with great velocity by aninjector-shaped air-sucker placed below the fire-bars and above thewater pan or cistern. The hollow fire-bars are fitted with fire'clay forthe purpose of superheating and creating a draft by drawing air andvapor from the water through theairsucker, and by this construction offire-bar the adhesion of clinkers is prevented.

In the accompanying drawings I have illustrated a convenient way ofcarrying my invention into effect, Figure 1 being a section of a furnaceshowing my improvements applied thereto. Fig. 2 is an enlargedcross-section of one of the hollow fire-bars, taken on line a: y ofFig. 1. Fig. 3 is apartial elevation of one end of a firebar, and Fig. 4a plan View of Fig. 3.

This enables me to obtain, as aforesaid,

Referring to the drawings, A is one of the fire-bars formed in twohalves longitudinally, (see Fig. 2,) and held together by bolts orrivets. Fire-clay A is forced while in a plastic state into theapertures and recesses provided in the central and lower portion of thefire-bar, and retained therein by its being forced through and hardeningin the apertures marked A, Fig. 1, and having dovetailed edges, as bestseen in the sectionat Fig. 2. A space, A is also provided atthe upperedge of the fire-bar and of dovetail section, and is alsofilled in withfire-clay.

A is the hollow space passing throughout the length of the fire-bar, andhaving side openiugs, A gon each side alternately. At one end, as shownat Fig. 1, the aperture Ahas adownward curve, and comes opposite andcommunicates with conical'shaped apertures B, formed in a resting bar orbearer, B, there being one such conical aperture in the length of suchbearer B for each fire-bar resting thereon.

O O are the injector-shaped air-suckers or tuyeres through which the airtravels, as indicated by the-arrows in Fig. 1. These tuyeres G G arepreferably arranged, as shown,within one another, and are curved or bentin an upward direction. tuyere, O, is smaller than the outer one,causing an induced current of air by giving a greater "elocity to andsucking up of the air through the larger tuyere, O. Thisinjector-liketuyere may extend the length of the bearer B, or there maybe several for each furnace;

In the ash-pit, and passing below the firebars, I provide a cistern ortank for containing water supplied from any convenient source, whichcistern may or may notbe made removable, as preferred. 1

When in action, the air mixing with the vapor from the Water is drawn orsucked up by the injector like double tuyeres O O. The action of thesetuyeres tends as the current of air passes upward to quicken same,on thewellknown induced-current principle, and passing through the conicalapertures B in the bearer B enters the aperture A in the length of thefire-bar. The air and vapor pass by the side The upper end of the innerapertures, A, into the fire in a highly-superthe entire apparatus iswholly automatic in its [0 action.

I claim as my invention- The combination, with hollow fire' bars havingapertures, of the hollow bearer B,With openings leading into the hollowfire-bars, and the air-suckers or tuyeres G 0 below the hol- 15 lowbearer, and acting to heat the air and vapor from a water-pan and passthe same into the fire, substantially as specified.

JOHN NEPOMUG MOERAT H.

Witnesses:

J NO. DEAN, HERBERT E. DALE, Both of N0. 17 GracechmchStreet, London, E.

